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Joints - Anatomy & Physiology (view source)
Revision as of 12:00, 18 July 2008
, 12:00, 18 July 2008→'''Synovial Joints'''
****Cows - < 1 x 10e9/L
****Cows - < 1 x 10e9/L
*Often the synovial membrane is reinforced by a fibrous capsule and ligaments restricting joint movement and providing stability
*Often the synovial membrane is reinforced by a fibrous capsule and ligaments restricting joint movement and providing stability
**Encloses bone and muscle insertions within joint capsule
**Supplied by blood vessels and nerve endings
*Articular cartilage covers the articular surfaces
*Articular cartilage covers the articular surfaces
**Usually, this is [[Bones and Cartilage - Anatomy & Physiology#Structure and Function of Cartilage|Hyaline]], although [[Bones and Cartilage - Anatomy & Physiology#Structure and Function of Cartilage|Fibrocartilage]] or fibrous tissue can substitute
**Usually, this is [[Bones and Cartilage - Anatomy & Physiology#Structure and Function of Cartilage|Hyaline]], although [[Bones and Cartilage - Anatomy & Physiology#Structure and Function of Cartilage|Fibrocartilage]] or fibrous tissue can substitute
**Articular cartilage is avascular and insensitive
**Articular cartilage is avascular and insensitive
***Nutrients via diffusion from synovial fluid and nearby vessels (adjoining tissue and marrow cavities)
***Nutrients via diffusion from synovial fluid and nearby vessels (adjoining tissue and marrow cavities)
*Some joints possess intracapsular '''discs''' or '''menisci''' to provide congruence and enable complicated movements
**Eg. Temperomandibular joint, paired menisci of the stifle joint
**Limited response to injury, Little repair capacity
**Limited response to injury, Little repair capacity